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Description
Zinc Defense | Zinc + Copper + Quercetin | 60 Servings in Vegan Capsules | L-OptiZinc & Quercefit Ionophore | Chelated Minerals | Immune, Gut, & Hormonal Balance SupportCOPPER ZINC BALANCE: Pure TheraPro Rx Zinc Defense contains patented L Optizinc Zinc and TRAACS Copper Bisglycinate, two essential trace elements in an optimal balance. This creates Copper Zinc Superoxide Dismutase (CuZnSOD), a powerful free radical fighting enzyme to support cellular defense and immune function. ENHANCED ABSORPTION Pure TheraPro Rx Zinc Defense also contains a patented, highly bioavailable form of Quercetin known as Quercefit.
- COPPER-ZINC BALANCE: Pure TheraPro Rx Zinc Defense contains patented L-Optizinc Zinc and TRAACS Copper Bisglycinate, two essential trace elements in an optimal balance. This creates Copper-Zinc Superoxide Dismutase (CuZnSOD), a powerful free radical fighting enzyme to support cellular defense and immune function.
- ENHANCED ABSORPTION - Pure TheraPro Rx Zinc Defense also contains a patented, highly bioavailable form of Quercetin known as Quercefit. Utilizing Phytosome technology, Quercefit has been proven to increase Quercetin absorption by more than 20x which enables the Quercitin to act as an ionophore. The Quercitin ionophore can transport Zinc to the center of your cells where it's needed most for immune health.
- BOOSTED BIOAVAILABILITY - L-OptiZinc is a unique mineral chelate that pairs Zinc with the amino acid L-Methionine for optimal bioavailability. Clinical studies have shown that compared to other forms of Zinc supplements, L-OptiZinc is actually better absorbed and plasma levels remain higher throughout the body.
- GMP-CERTIFIED QUALITY CONTROL: Pure TheraProRx Zinc Defense is formulated without wheat, gluten, corn, yeast, soy, animal or dairy products, fish, shellfish, peanuts, tree nuts, egg, ingredients derived from genetically modified organisms (GMOs), artificial colors, & artificial flavors. Manufactured in the USA in a GMP-certified facility for guaranteed quality and potency.
- ABOUT US: Pure TheraPro was founded in Denver Colorado to formulate and manufacture the highest quality supplements available on the market today. Purity is our priority, which is why we insist on using patented, clinically studied ingredients, and never utilizing fillers, flow agents, excipients, or ingredients sourced from China. We also never use dairy, gluten, corn, soy, or other common allergens in any of our class-leading, practitioner-recommended formulas.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Durable!
Color: 1PC-Beef-Red
Alright, here's a product review for those Tough Dog Toys:
Finally, a Toy That Survives My Monster! - Tough Dog Toys Review
As the owner of a determined (and I mean determined) large breed chewer, finding toys that last longer than five minutes has been a constant and often frustrating quest. I've gone through countless plush toys ripped to shreds, rubber toys with chunks missing, and even some "indestructible" toys that met their demise far too quickly. That's why I was both hopeful and skeptical when I came across the Tough Dog Toys, designed specifically for aggressive chewers and large breeds.
Let me tell you, these bone-shaped nylon toys are living up to their name. My power-chewing Labrador has been going at this thing for days now, and I'm genuinely impressed. Where other toys have succumbed to his relentless gnawing, the Tough Dog Toy has held its own. There are some minor teeth marks, as expected, but absolutely no significant damage, no pieces torn off, and no signs of imminent destruction. "Almost indestructible" might actually be an understatement!
The design is simple but effective. The solid nylon construction feels incredibly durable, and the bone shape is easy for my dog to grip and maneuver. It's also a good size for a large breed – substantial enough that he can really get a good chew going without it disappearing in his mouth.
What I appreciate most is the peace of mind this toy provides. I no longer have to constantly supervise playtime, fearing that he'll ingest pieces of a destroyed toy. This feels like a safe and long-lasting option for even the most enthusiastic chewers.
Pros:
* Truly durable – stands up to aggressive chewing from a large breed.
* Solid nylon construction feels virtually indestructible.
* Safe design with no small parts to break off.
* Good size and shape for large dogs to grip and enjoy.
* Provides long-lasting entertainment.
Cons:
* May show some teeth marks over time (though this hasn't compromised its integrity).
* It's a fairly hard material, so dogs who prefer softer toys might not be as interested.
Overall:
If you're at your wit's end trying to find a toy that can withstand your aggressive chewing large breed dog, I highly recommend giving the Tough Dog Toys a try. This bone toy has proven to be the most durable option we've encountered, offering excellent value for money and, most importantly, a safe and engaging chewing experience for your furry friend. Five out of five paws!
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Reviewed in the United States on April 23, 2025
★★★★★ 5
it was a bit too hard/small for my Great Pyrenees, so it didn’t work out for my dog specifically
Color: 1PC-Beef-Red
is good quality and feels very durable and well made. The material is strong and holds up well against chewing, especially for aggressive chewers. It’s also a nice design and seems safe for dogs to use.
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Reviewed in the United States on May 3, 2026
★★★★★ 4
Indestructible dog toy
Color: 1PC-Beef-Red, Color: 1PC-Beef-Red
I have an 85 lb Pitbull and he loves to chew on those kind of hard bones but the meat flavor and scent is only in the middle the knobs on the end are just plain nylon and yes it is taking him a long time to get through them but little white fibers keep coming off I find them on the couch and he nibbles and tries to eat it so I believe he's eating the nylon and still has yet to get to where the beef flavor is in the center he doesn't chew from the middle he goes from the end all of his other chew toys he has he has demolished this one not so much I only gave four stars because my dog doesn't like it so much it is a very good sturdy toy though and has a good beefy smell. And a fair price.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Long lasting and the dogs really like them
Color: 1PC-Beef-Red
I purchased these over a year ago and they are still standing up to 2 heavy chewers and a medium dog.
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Reviewed in the United States on June 6, 2026
★★★★★ 5
For aggressive chewers means just that!
Color: 1PC-Beef-Red
Large size means large. Very well constructed and made for the aggressive chewer I have at home.
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Reviewed in the United States on June 11, 2026
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